A modern invented name likely influenced by Mason, Lawson, and similar English surname-style names.
Laysen (also spelled Laisen or Laycen) appears to be a modern constructed name emerging from the broader creative naming tradition, most active in American English-speaking communities, that builds new given names from familiar phonetic components. The -sen suffix has a strong Scandinavian valence — it is the definitive patronymic ending in Danish and Norwegian, giving names like Jensen (son of Jens), Larsen (son of Lars), and Andersen — and its adoption into English-American naming carries connotations of northern European heritage and a certain understated Nordic cool. The Lay- opening could draw from Layne, Layla, or simply from the aesthetic preference for the long-A sound in contemporary American given names.
Though the name lacks a single well-documented etymology, its construction places it firmly in the tradition of surname-style given names that have flourished since the late twentieth century. In this tradition, the "sound" of a name carries its own meaning: the -sen ending sounds grounded and Northern, the long vowel opening sounds open and modern. Names in this family — Kaysen, Jaysen, Graysen, Laysen — have appeared with increasing frequency in birth records in the American South and Midwest from the 2000s onward, suggesting a regional naming community that prizes this phonetic profile.
What Laysen offers a child is a name that feels both invented and rooted: unmistakably contemporary in its construction, yet anchored by a suffix with centuries of Scandinavian genealogical history. It will almost certainly not be shared with other children in a classroom, which is precisely its appeal to many parents. It sits at the intersection of the surname-name trend, the Scandinavian-aesthetic trend, and the preference for names that end in a clear, sonorous -n sound — a phonetic trifecta that has proven reliably popular in American naming culture.